...but I notice that there don't seem to be many drivers for it [UDI]
So then you've got a choice....
1. Write all your own drivers for AROS
2. Write all your own drivers for AROS using UDI, where they be usable to any other OS that supports UDI.
Hey! Then if there's some useful drivers other OSs might use UDI!
Hey! Then they might write their own drivers that AROS will be able to use!
Geddit?